Aging and cancer have some shared metabolic pathways, but your framing is an extreme oversimplification.

Consider the accumulation of mutation that would occur in a cell not subject to aging.

You could just as easily find support for the counterposition: aging, in a sense, prevents cancer. [0]

0: Judith Campisi, "Senescent cells, tumor suppression, and organismal aging: good citizens, bad neighbors," Cell 120:513–522 (2005). https://pubmed.ncbi.nlm.nih.gov/15734683/

Edit: you edited your comment to talk about mitochondria transplants, but the science I am aware of actually points in the opposite direction: https://pubmed.ncbi.nlm.nih.gov/25565207/

Do you have supporting evidence?